Image pickup apparatus and controlling method thereof

ABSTRACT

In order to display help information at the time when each of a self-timer button, an illumination button, AE lock button and the like is operated, an image pickup apparatus displays help information with understandable wording in use of simple terms in consideration of a possibility that a user is not proficient in camera operations in case of a full-automatic mode or a photographing mode of an image zone, and displays help information with concise and easily recognizable wording inclusive of technical terms in accordance with necessity in consideration of a possibility that a user is proficient in camera operations to a certain extent in case of a photographing mode of a creative zone.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an image pickup apparatus having a function of providing explanatory information when an operation member is operated or including an operation member for restoring the state of function settings to the initial state of settings, a method of controlling the image pickup apparatus and a computer program.

2. Description of the Related Art

Setting modes such as shutter speed, apature value, exposure meter, AF mode and AE mode are displayed on an operation panel of a camera having a great number of functions.

Users occasionally desire to get detailed information on a mode for use (photographing operation methods, photographing effects and the like) on the occasion of photographing in any photographing mode and then used to be required to read a manual to confirm it.

In addition, there occasionally depicted on a surface or around the periphery of operation buttons of a camera are such symbols, characters and drawings and the like that are simplified to express functions of its operation buttons. However, it is not easy to comprehend as many as issues such as how to use its functions and their photographing effects, only by taking a look at such simplified symbols and the like.

Therefore, such a camera is proposed that is arranged to display help information on operations onto a display panel consisting of an LCD and the like provided on the exterior of the camera to describe operation members, operation methods and the like. Thereby, users do not have to bring a manual with them but can know about how to use various kinds of functions and photographing effects obtainable by those functions and the like in details.

For example, Japanese Patent Application Laid-Open No. H07-284034 has disclosed a help information display apparatus capable of presenting optimum menu information corresponding to proficiency of the users by controlling presentation of help information on the basis of an operation history on operations for displaying menu or displaying help.

In addition, when the state of an image pickup apparatus is in a predetermined state, Japanese Patent Application Laid-Open No. 2003-319211 proposes an image pickup apparatus capable of notifying the occurrence of the predetermined state, displaying moving image help information or simple help information related to the image pickup apparatus by a display instruction of a user and thereby appropriately presenting information related to the image pickup apparatus in accordance with proficiency of a user.

Moreover, a camera having a great number of functions is made capable of varying various setting states as well as setting values of the operation conditions. With a means for keeping on storing those setting values even if when the power supply is put off, it is possible to use it so as to improve operability while retaining setting contents of the prior session at the time of the subsequent session. However, on the other hand, as the number of settable item increases, it is bothersome to change respective settings in order to bring the settings in their entirety back to the reference state. And, also there known is such a camera that can bring settings in their entirety back to the reference state under the condition that a user carries out the menu operation.

However, the help information display apparatus described in Japanese Patent Application Laid-Open No. H07-284034 is based only on an operation history on operations for menu display or operations for help display and therefore optimum menu information corresponding to proficiency of the users is not necessarily presented. In addition, for proficient users who do not require help display, unless they repeat the number of operations, help information does not set to “non-display”, giving rise to such a problem that unnecessary help display is always displayed and bothers the users.

In addition, the image pickup apparatus disclosed in Japanese Patent Application Laid-Open No. 2003-319211 displays the help information only under such a condition that when the image pickup apparatus is in a predetermined state users who is notified to that effect implement an operation of displaying help information for themselves, giving rise, therefore, to such a problem that a series of operations related to the image pickup apparatus lack smoothness and are bothersome. Moreover, in order that moving image help information or simple help information is caused to be displayed, it is necessary to implement respectively different operations and, therefore, help information different from help information on a desired level might be displayed to introduce confusions.

Moreover, a camera capable of bringing the setting values in their entirety back to the reference state under the condition that a user carries out a predetermined operation, gets back to the same reference state on users different in proficiency, giving rise, therefore, to a problem that respective users cannot get optimum operability.

The present invention has been attained in view of such actual situation and an object thereof is to provide help information in accordance with proficiency of a user and make it possible to bring a state of function settings to the initial setting state.

SUMMARY OF THE INVENTION

An aspect of the present invention lies in that an image pickup apparatus having a guidance display unit includes a mode setting unit configured to set a photographing mode of an image pickup apparatus and a guidance display changing unit configured to change a detail level of displayed guidance in accordance with a photographing mode set by the mode setting unit, wherein contents of the changed detail level of guidance express same meaning.

Other objects and features of the present invention will become apparent from the following description and the attached drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing a digital single lens reflex camera of a first embodiment.

FIG. 2 is a rear view of the digital single lens reflex camera of the first embodiment.

FIG. 3 is a drawing depicting contents displayed by a photographing condition display unit of an external liquid crystal panel.

FIG. 4 is a drawing showing an example displayed by a menu display unit of the external liquid crystal panel.

FIG. 5 is a drawing showing an exemplary display of a help display unit of the external liquid crystal panel.

FIG. 6 is a drawing for describing a mode dial.

FIG. 7 is a block diagram showing a function configuration of main part of the digital single lens reflex camera of the first embodiment.

FIG. 8 is comprised of FIGS. 8A and 8B showing tables listing combinations of photographing functions for respective photographing modes.

FIG. 9 is a flow chart for describing a display control example of help information in the first embodiment.

FIG. 10 is a flow chart for describing a display control example of help information in the first embodiment.

FIG. 11 is a rear view showing a digital single lens reflex camera of a second embodiment.

DESCRIPTION OF THE EMBODIMENTS

Preferable embodiments of the present invention will be described below with reference to the accompanying drawings.

First Embodiment

FIG. 1 is a perspective view showing a digital single lens reflex camera of a first embodiment and FIG. 2 is a rear view thereof. Reference numeral 1 denotes a camera main body. Reference numeral 2 denotes an interchangeable lens detachably attachable to the camera main body 1. Reference numeral 3 denotes a lens removal button for removing the interchangeable lens 2 from the camera main body 1. Reference numeral 4 denotes a built-in strobe housed in the camera main body 1. Reference numeral 5 denotes a finder for observing an object.

Reference numeral 6 denotes a main switch for switching ON/OFF of a power supply of the camera. Reference numeral 7 denotes a mode dial for switching respective kinds of photographing modes of the camera. Reference numeral 8 denotes an electronic dial for inputting the respective kinds of photographing conditions such as shutter speed, apature values.

Reference numeral 10 denotes a release button, which is configured by a two-stage switch for starting photometry and distance measurement and for causing a release to occur. That is, under a state where release button 10 is lightly pressed to a first stage (so-called “half depression”), photometry and distance measurement is carried out. When the half depression further progresses to a second stage (so-called “full depression”), the shutter operates so that photographing operation is implemented and image information is generated by an image pickup element photometrically converting an image object.

Reference numeral 11 denotes a built-in strobe button for putting the built-in strobe 4 into a usable state. Reference numeral 12 denotes a self-timer button for using a self-timer function build-in in the camera. Reference numeral 13 denotes an AF frame selection button. The AF frame selection button 13 is depressed; thereafter the electronic dial 8 is rotated; and thereby it is possible to change a focusing region in a photographing window, that is, an AF frame.

Reference numeral 14 denotes an AE lock button for carrying out AE lock photographing. Reference numeral 15 denotes an exposure correction button for carrying out exposure correction in combination with the electronic dial 8. Here, a manual photographing mode can set the apature values manually with the exposure correction button 15.

Reference numeral 16 denotes an illumination button for lighting a back light of the external liquid crystal panel 30. Reference numeral 17 denotes an iris button for narrowing down the lens iris to reach an apature value set at that time. Thereby, the user can confirm depth-of-field. Reference numeral 18 denotes a light emitting red-eye lamp for relaxing a so-called red-eye phenomenon which occurs at the time of strobe photographing.

Reference numeral 20 denotes a four-way operational key for moving selection items vertically and horizontally at the time of implementing various settings on a menu window. Reference numeral 21 denotes a set button for determining selection items.

Reference numeral 22 denotes a menu button for causing external display panel 30 to display a menu. Reference numeral 23 denotes an info button for causing a current setting list of photographing conditions to be displayed.

Reference numeral 24 denotes a jump button for jumping to a preceding or following image to be replayed, from a replayed image during a replay operation in a replay mode. Reference numeral 25 denotes a replay button for switching to a replay mode for replaying and displaying a recorded image. Reference numeral 26 denotes a delete button for deleting a replayed image.

Reference numeral 27 denotes an external memory card cover, which opens/closes in order to detachably attach a not-shown external memory card for storing image information generated by photometrically converting an object with an image pickup element.

Reference numeral 30 denotes an external liquid crystal panel, which includes by photographing condition display unit 31, menu display unit 32 and help display unit 33.

As described above, the digital single lens reflex camera of the first embodiment has a plurality of switches, buttons, dials of operation members 6 to 8, 10 to 17 and 20 to 27 and the like which are operated in order to set photographing modes and operation conditions and cause the camera to operate.

FIG. 3 shows display contents of photographing condition display unit 31 of external liquid crystal panel 30. The photographing condition display unit 31 displays set photographing conditions, by using a mark expressing them. Specifically, reference numeral 41 denotes a red-eye relaxation mark, which is displayed when a red-eye relaxation function is set. Reference numeral 42 denotes a self-timer mark, which is displayed when a self-timer mode is set.

Reference numeral 43 denotes a drive mode mark, that displays which of single photographing and continuous photographing is set. Reference numeral 44 denotes a recording image quality display portion, which displays a mark corresponding to the set recording image quality. For example, in case of the depicted example, it is displayed that an RAW format has been set.

Reference numeral 45 denotes an exposure correction display unit, which displays a difference (the number of stages) from the reference value 0 in the case where exposure correction has been carried out, and the exposure level at the time of manual photographing. Reference numeral 46 denotes an AEB mark, which is displayed when such an AEB function is set that can carry out photographing on three images in series while changing exposure automatically with release operations. Reference numeral 47 denotes a remaining battery level display unit, which displays a remaining battery level of a battery put in the camera.

Reference numeral 48 denotes a white balance display unit, which displays a mark corresponding to a set white balance. Reference numeral 49 denotes a number-of-photographable pictures displaying unit, which displays the number of photographable pictures which is estimated from a remaining capacity of a mounted external memory card.

Reference numeral 50 denotes a shutter speed display unit, which displays shutter speed manually set by the user or shutter speed automatically set by the camera. Reference numeral 51 denotes an apature value display, which displays the set apature value.

FIG. 4 shows a display example of the menu display unit 32 of the external liquid crystal panel 30. As described above, menu button 22 is depressed so as to display the menu window. Selection of items in use of four-way operational key 20 and set button 21 in the display region area of menu display unit 32 enables setting of photographing conditions or replay conditions. In addition, when the replay button 25 is depressed, the menu display unit 32 can display a photographed image as well.

FIG. 5 shows a display example of help display unit 33 of external liquid crystal 30. When any of a plurality of operation members described above is operated, the help display unit 33 displays help information of the operation member. The depicted example is a display example when the illumination button 16 is depressed.

Next, with reference to FIG. 6, the mode dial 7 will be described. In FIG. 6, reference numeral 70 denotes a creative zone, where program AE mode “P”, shutter speed priority AE mode “Tv”, apature priority AE mode “Av”, manual exposure mode “M” and auto depth mode “A-DEP” are set. When mode dial 7 is rotated so as to match any of mode marks scribed in the creative zone 70 with mode index mark 80 on the side of camera main body 1, and thereby a photographing mode corresponding to the mode mark is set.

In intelligent program AE mode “P”, when the release button 10 is depressed halfway, the camera automatically determines shutter speed and an apature value. The user operates the electronic dial 8 to attain program shifting. In shutter speed priority AE mode “Tv”, when a user sets shutter speed with the electronic dial 8, the camera sets the apature value automatically in accordance with brightness of an object. In apature priority AE mode “Av”, when a user sets an apature value with the electronic dial 8, the camera sets the shutter speed automatically in accordance with brightness of an object. With manual exposure mode “M”, a user can carry out photographing by determining shutter speed or an apature value. Shutter speed is set directly with the electronic dial 8 and the apature value is set by rotating the electronic dial 8 while depressing the exposure correction button 15. Auto depth mode “A-DEP” determines an apature value and a focus position so that a plurality of objects overlapped onto the AF frame falls within the depth-of-field.

In FIG. 6, reference numeral 71 denotes a full-automatic mode and when the mode dial 7 is rotated so as to match mode mark thereof with mode index mark 80 on the side of camera main body 1, and thereby the full-automatic mode is set.

In FIG. 6, reference numeral 72 denotes an image zone, which sets portrait mode 73, landscape mode 74, close-up mode 75, sports mode 76, night view mode 77 and strobe emission prohibiting mode 78. When the mode dial 7 is rotated so as to match any of mode marks scribed in image zone 72 with the mode index mark 80 on the side of cameral main body 1, and thereby a photographing mode corresponding to the mode mark is set.

With the full-automatic mode 71 and those photographing modes of the image zone 72, the camera sets an optimum AF frame, shutter speed and apature value automatically. Therefore, a user can carry out good photographing simply only by depressing the release button 10.

Help information displayed in help display unit 33 of the external liquid crystal panel 30 will be described below. Help information is displayed when operation members 7, 11, 12, 13, 14, 15, 16, 17 and the like are operated. Here, help information described in the present embodiment is no more than an example and will not be limited to contents of statements therein.

Help information taking photographing mode as identification information thereof

FIG. 7 shows a function configuration of key portions of the digital single lens reflex camera of the present embodiment. Here, the same symbols will designate the same or similar configuration elements already described above. There provided inside the camera is a display control unit 700 for carrying out display control of the help display unit 33 in the external liquid crystal panel 30. Photographing mode information set by the mode dial 7 as well as operation information on whether an operation member has been operated or not is inputted to the display control unit 700. Based on photographing mode information as well as operation information, which will be described below, a selection unit 700 a of the display control unit 700 selects and extracts help information (guidance) from a help information storage unit 701 to display it on the help display unit 33.

Help information at the time when the mode dial 7 has been operated will be described at first. When the mode dial 7 is rotated so as to match mode marks scribed in the mode dial 7 with the mode index mark 80 on the side of camera main body 1, and help information of that selected photographing mode is described. When other operation members are operated in that state, a part of or entire display is switched to help information on the operation members having been operated anew.

There described now is an example to display help information when the mode dial 7 is operated to a full-automatic mode 71 or photographing mode of the image zone 72. At the time when the full-automatic mode 71 is selected, there displayed is “Now a full-automatic mode is on. Just press down the shutter button and beautiful picture is photographable.”

At the time when a portrait mode 73 of the image zone 72 is selected, there displayed is “Now a portrait mode is on. A picture with unfocused background and vivid front people is photographable.” In addition, at the time when a landscape mode 74 is selected, there described is “Now a landscape mode is on. Near landscapes to distant landscapes are clearly photographable.” In addition, at the time when a close-up mode 75 is selected, there described is “Now a close-up mode is on. Near photographing of a small object is also simply photographable.” At the time when a sports mode 76 is selected, there described is “Now a sports mode is on. This is a mode subject to combination of motion predictive AF and rapid AE optimum for a moving object.” At the time when a night view mode 77 is selected, there described is “Now a night view mode is on. A night view is photographable in a beautiful state exactly as you see.” At the time when a strobe emission prohibiting mode 78 is selected, there displayed is “Now a strobe emission prohibiting mode is on. No emission is allowed even if the strobe has got up.”

There described next is an example to display help information when the mode dial 7 is operated to a photographing mode of the creative zone 70. At the time when the intelligent program AE mode is selected, there displayed is “Now a (P) intelligent program AE mode is on. Rotate the electronic dial to do program shift.” At the time when a shutter-priority AE mode is selected, there displayed is “Now a (Tv) shutter-priority AE mode is on.” At the time when an apature priority AE mode is selected, there described is “Now an (Av) apature priority AE mode is on.” At the time when a manual exposure mode is selected, there displayed is “Now an (M) manual exposure mode is on.” At the time when an auto depth mode is selected, there displayed is “Now an (A-DEP) auto depth mode is on. The camera sets an apature value and a focus position so that each of objects picked up at a plurality of distance measurement points is focused.”

Help information will be described below in the state where a photographing mode has been set with the mode dial 7 when the self-timer button 12, illumination button 16 and AE lock button 14 are operated as representative example.

Self-Timer Button 12

When the self-timer button 12 is depressed with the mode dial 7 already set to the full-automatic mode 71 or a photographing mode of the image zone 72, there displayed is “Now a self-timer mode is on. Please depress the release button fully, taking a look through the finder. Photographing is starting in ten seconds.” Moreover, when the self-timer button 12 is depressed once more, there displayed is “Now normal photographing mode is on. Please depress the self-timer button once more in order to get the self-timer mode back.”

In contrast, when self-timer button 12 is depressed with the mode dial 7 having been already set to photographing mode of the creative zone 70, there displayed is “Now a self-timer mode is on. Please be cautious about finder counter-light. Photographing is starting in ten seconds.” Moreover, when the self-timer button 12 is depressed once more, there displayed is “Now a normal photographing mode is on.”

Illumination Button 16

When the illumination button 16 is depressed with the mode dial 7 having been already set to the full-automatic mode 71 or a photographing mode of the image zone 72, there displayed is “Now display panel illumination button is on. Illumination of the display panel is being lighted” and illumination of the display panel is lighted concurrently.

In contrast, when the illumination button 16 is depressed with the mode dial 7 having been already set to a photographing mode of the creative zone 70, there displayed is “Now display panel illumination button is on. Lighting lasts for six seconds.” and illumination of the display panel is lighted concurrently.

AE Lock Button 14

When the AE lock button 14 is depressed with the mode dial 7 having been already set to the full-automatic mode 71 or a photographing mode of the image zone 72, there displayed is “Now an AE lock button is on. This is a button for implementing AE lock photographing. * is displayed inside the finder so that an exposure value is fixed.”

In contrast, when the AE lock button 16 is depressed with the mode dial 7 having been already set to a photographing mode of creative zone 70, there displayed is “Now AE lock button is on. * is displayed inside the finder and photometry range is set to partial photometry.”

The above-described display example of help information is to display help information with understandable wording in use of simple terms in consideration of possibility that a user is not proficient in camera operation at the time when the mode dial 7 is set to the full-automatic mode 71 or the photographing mode of the image zone 72. In contrast, help information is displayed with concise and easily recognizable wording inclusive of technical terms in accordance with necessity in consideration of possibility that a user is proficient in camera operation to a certain extent at the time when the mode dial 7 is set to the photographing mode of the creative zone 70. Thus, it becomes possible to provide optimum help information in accordance with the proficiency of a user so that an image pickup apparatus excellent in operability can be provided.

Here, help information is designed to be displayed and thereafter the subsequent operation is carried out or to disappear in laps of a fixed time after display (for example, in laps of six seconds).

In addition, in the present embodiment, help information is designed to be displayed on the external liquid crystal panel 30 so that a user is provided therewith but may be provided as audio information.

Help information taking settings but photographing mode as identification information thereof

In the example described above, help information at the time when an operation member is operated has been designed to be selected and provided by using the photographing mode set by the mode dial 7 as identification information, but settings other than the photographing mode may be used as identification information. There described below will be an example that uses, as identification information, the setting of a recording image quality type, ISO sensitivity, a white balance, a development parameter, an AF mode, an AF frame selection mode, a photometry method, an exposure correction setting and a custom function. Here, a functional configuration in main parts of a digital single lens reflex camera is likewise the one shown in FIG. 7 and, instead of photographing mode information, there inputted is setting information on ISO sensitivity, a white balance, a development parameter, an AF mode, an AF frame selection mode, a photometry method, an exposure correction setting and a custom function.

ISO sensitivity can be set freely even if photographing mode of a camera is full-automatic mode 71, photographing modes of image zone 72 or photographing modes of creative zone 70. However, it is possible to freely set a recording image quality type, a white balance, a development parameter, an AF mode, an AF frame selection mode, a photometry method, an exposure correction setting and a custom function only when a photographing mode is set to a photographing mode of creative zone 70, but the camera implements setting automatically when the photographing mode of the camera is set to the full-automation mode 71 or a photographing mode of the image zone 72.

FIGS. 8A and 8B show combination lists of photographing functions for each photographing mode. A recording image quality type, ISO sensitivity, a white balance, a development parameter, an AF mode, a photometry method and a custom function are respectively selectable out of inside the menu window not shown in the drawing, by depressing the menu button 2.

As for the recording image quality type, it is possible to set two kinds thereof, that is, a JPEG type of a commonly well known compression type and an RAW type which is a non-compression system and deemed to require exclusive software for handling. The RAW type takes development treatment with a computer as a precondition and therefore requires technical knowledge but is capable of preparing an image optimum for intended use.

As for ISO sensitivity, it is feasible for either the camera to set optimum sensitivity automatically (automatic ISO) or a user to set sensitivity manually (manual sensitivity setting).

As for the white balance, there feasible is setting an optimum white balance automatically in accordance with photographing state (automatic white balance), setting a white balance to a preset white balance already having been set in advance for respective light sources of photographing state, or setting manually.

Development parameters are contents of settings on development processing of photographed images (contrast, sharpness, depth of color and tone of color), and changing those development parameters can give rise to vivid and clear feeling or, on the contrary, reserved feeling through development. In the present embodiment, it is possible to select such a parameter set that can optionally set a reference parameter set in advance, and each of contrast, sharpness, depth of color and tone of color.

An AF mode refers to AF operation properties and is selectable from three kinds of one shot AF suitable for photographing an object staying still, an AI servo AF suitable for photographing an object in motion and an AI focus AF implementing switching between the one shot AF and the AI servo AF automatically.

An AF frame selection mode can select an AF frame by rotating the electronic dial 8 after the AF frame selection button 13 is depressed. For example, seven AF frames are provided and it is possible to select, in accordance with photographing circumstances, an automatic selection mode of implementing automatic selection from the seven AF frames and an optional selection mode selecting any one of the seven AF frames manually.

A photometry method is selectable from three kinds of photometry methods, that is, evaluation photometry of providing an object with an appropriate exposure value out of various light circumstances in photographing circumstances, partial photometry of metering only a range in the vicinity of an object and center-priority average photometry of averagely metering the entire window by laying emphasis on the center part of the window.

An exposure correction setting is set by rotating the electronic dial 8 while depressing the exposure correction button 15.

A custom function is a functional setting for changing camera functions minutely in accordance with various photographing styles.

Help information at the time of having operated the iris refining button 17 in the state where ISO sensitivity is set will be described below as a representative example.

Iris Refining Button 17

At the time when ISO sensitivity is set to an auto ISO, the iris refining button 17 is depressed, and then there displayed is “Now a depth-of-field confirmation button is on. Iris is refined to a set apature value so that a well-focused range can be confirmed.”

In contrast, when iris refining button 17 is depressed with ISO sensitivity having already undergone a manual sensitivity setting, there displayed is “Now a depth-of-field confirmation button is on.”

The above-described display example of help information is to display help information with understandable wording in use of simple termsS in consideration of possibility that a user is not proficient in camera operations at the time when ISO sensitivity is set to an auto ISO. In contrast, help information is displayed when ISO sensitivity has undergone a manual sensitivity setting with concise and easily recognizable wording inclusive of technical terms in accordance with necessity in consideration of possibility that a user is proficient in camera operations to a certain extent. Thus, it becomes possible to provide optimum help information in accordance with proficiency of a user so that an image pick up apparatus excellent in operability can be provided.

There described briefly below will be such a case that takes, as identification information, the setting of a recording image quality type, a white balance, a development parameter, an AF mode, an AF frame selection mode, a photometry method, an exposure correction setting and a custom function but the ISO sensitivity. When the recording image quality type is set to a JPEG type, such a possibility that a user is not proficient in camera operations is considered. In contrast, when the recording image quality type is set to the RAW type, there considered is such a possibility that a user is proficient in camera operations to a certain extent.

When the white balance is set to the auto white balance, such a possibility that a user is not proficient in camera operations is considered. In contrast, when the white balance is set to the preset white balance or is set manually, there considered is such a possibility that a user is proficient in camera operations to a certain extent.

When the development parameter is set to the reference parameter, such a possibility is considered that a user is not proficient in camera operations. In contrast, when the development parameter is set to a parameter set, there considered is such a possibility that a user is proficient in camera operations to a certain extent.

When the AF mode is set to the AI focus AF, such a possibility is considered that a user is not proficient in camera operations. In contrast, when the AF mode is set to the one shot AF or the AI servo AF, there considered is such a possibility that a user is proficient at camera operations to a certain extent.

When the AF frame selection mode is set to the automatic selection mode, such a possibility is considered that a user is not proficient in camera operations. In contrast, when the AF frame selection mode is set to the optional selection mode, there considered is such a possibility that a user is proficient in camera operations to a certain extent.

When the photometry method is set to the evaluation photometry, such a possibility is considered that a user is not proficient in camera operations. In contrast, when the photometry method is set to the partial photometry or center-priority average photometry, there considered is such a possibility that a user is proficient in camera operations to a certain extent.

When the exposure correction setting has not been set, such a possibility is considered that a user is not proficient in camera operations. In contrast, when the exposure correction setting is set, there considered is such a possibility that a user is proficient in camera operations to a certain extent.

When the custom function has not been set, such a possibility is considered that a user is not proficient in camera operations. In contrast, when the custom function has been set, there considered is such a possibility that a user is proficient in camera operations to a certain extent.

Help information taking accessory appliances mounted on camera as identification information thereof

In the example described above, help information at the time when an operation member is operated has been designed to be selected and provided by using the photographing mode as well as a recording image quality type, ISO sensitivity, a white balance, a development parameter, an AF mode, an AF frame selection mode, a photometry method, an exposure correction setting and a custom function set by the mode dial 7 as identification information, but accessory appliances mounted on a camera may be used as identification information. There described below will be an example that uses accessory appliances mounted on a camera as identification information. Here, the functional configuration of the main parts of a digital single lens reflex camera is likewise the one having been shown in FIG. 7, information on accessory appliances is inputted, instead of the photographing mode information.

As an interchangeable lens of the single lens reflex camera, those having various focal lengths and open apature values are present in great numbers. Performances and prices thereof are various, and lenses of a common class to lenses of a high class with high performances and high prices are put on sale. In addition, in interchangeable lenses, lenses for special uses, such as macrolens for near photographing, tilt lens which can undergo tilt photographing and shift photographing, and the like are put on sale.

In addition, as accessory of a single lens reflex camera, there present are an external strobe, a battery pack, a vertical position grip and the like and those of a common class to a high class are put on sale. What kind of accessory is mounted on a camera is identifiable in accordance with the camera reading ID information of the connected accessory.

In addition, as media, there known are two kinds of cards, that is, a card in use of flash memory which does not extinguish memory even if power is not discharged and a cared with a compact hard disk being built-in. In general, a hard disk built-in memory card has a large capacity and is cheaper than a flash memory card with the same capacity but is structurally fragile and requires cautiousness for handling and therefore is frequently used by a user proficient in camera operations to a certain extent. Whether such recording media are mounted on a camera or not can be discriminated by information transmitted to the camera from the recording media when the recording media is mounted on the camera.

When the lens mounted on the camera is a lens of a common class, such a possibility is considered that a user is not proficient in camera operations. In contrast, when the lens mounted on the camera is a lens of a high class or for an exclusive use, there considered is such a possibility that a user is proficient in camera operations to a certain extent.

When the accessory mounted on the camera is an accessory of a common class, such a possibility is considered that a user is not proficient in camera operations. In contrast, when the accessory mounted on the camera is an accessory of a high class, there considered is such a possibility that a user is proficient in camera operations to a certain extent.

When the media mounted on the camera is a hard disk built-in memory card, there considered is such a possibility that a user is proficient at camera operations to a certain extent.

Here, the present example has been designated to be based on kinds of accessory appliances but may be designated to be based on setting of the accessory appliances.

Help information 1 taking combination of camera settings and accessory appliances as identification information thereof

Identification information may be designated in combination of photographing mode described above, otherwise setting (a recording image quality type, ISO sensitivity, a white balance, a development parameter, an AF mode, an AF frame selection mode, a photometry method, an exposure correction setting and a setting of a custom function) and accessory appliances mounted on a camera. There described below will be an example that uses combination thereof as identification information.

Built-In Strobe Button 11

When the built-in strobe button 11 is depressed with the mode dial 7 having been already set to the full-automatic mode 71 or a photographing mode of the image zone 72 (at that time, a recording image quality type is set to a JPEG type automatically), there displayed is “Now built-in strobe up button is on. The strobe is lighted at the time of photographing. When it is not used, please depress the strobe with hands” and the built-in strobe 4 is lifted up concurrently.

In contrast, when the built-in strobe button 11 is depressed with the mode dial 7 having been already set to a photographing mode of the creative zone 70 and with the recording image quality type having already been set to the JPEG type, there displayed is “Now built-in strobe up button is on. Tuned shutter speed is 1/200.″ and the built-in strobe button 4 is lifted up concurrently.

In addition, when the mode dial 7 is set to a photographing mode of the creative zone 70 and the recording image quality type is set to the RAW type, even if the built-in strobe button 11 is depressed, help information will not be displayed but the built-in strobe button 4 is lifted up.

FIG. 9 shows a flow chart of help information display control at the time when the built-in strobe button 11 is depressed. When the built-in strobe button 11 is depressed (Step S1), help information discriminating information β is initialized (Step S2). Next, it is determined whether or not the mode dial 7 is set to a photographing mode of the creative zone 70 (Step S3).

In the case where the mode dial 7 is not set to a photographing mode of the creative zone 70 in Step S3, that is, in case of being set to the full-automatic mode 71 or a photographing mode of the image zone 72, the step directly moves to Step S5. In contrast, in the case where the mode dial 7 is set to a photographing mode of the creative zone 70, “1” is added to help information discriminating information β (Step S4) and thereafter, the step moves to Step S5. In that case, since help information discriminating information β is initialized in Step S2, β=β+1 will be derived.

In Step S5, it is determined whether or not the recording image quality type is set to the JPEG type. In the case where the recording image quality type is set to the JPEG type, the step moves directly to Step S7. In contrast, in the case where the recording image quality type is not set to the JPEG type, that is, is set to the RAW type, “1” is added to help information discriminating information β (Step S6) and thereafter, the step moves to Step S7.

In Step S7, it is determined whether or not help information discriminating information β is equal to or less than 0. In the case where help information discriminating information β is equal to or less than 0, the step goes forward to Step S9 to display help information display 1 (simple and easy expression). In contrast, in the case where help information discriminating information β is larger than 0, the step goes forward to Step S8 to determine whether or not help information discriminating information β is 1. In the case where help information discriminating information β is 1, the step goes forward to Step S10 to display help information display 2 (concise with technical term). In contrast, in the case where help information discriminating information β is not 1, that is, is large than 1, the step goes forward to Step S11 to designate help information display 3 (no display).

Exposure Correction Button 15

When the exposure correction button 15 is depressed with the mode dial 7 already set to the full-automatic mode 71 or a photographing mode of the image zone 72 (at that time, the recording image quality type is automatically set to the JPEG type), there displayed is “With this photographing mode, this exposure correction button does not operate. Please switch the photographing mode to the creative mode when you want to set exposure correction.”

In contrast, when the exposure correction button 15 is depressed with the mode dial 7 having been already set to a photographing mode of the creative zone 70 and the recording image quality type having been set to the JPEG type, there displayed is “Now an exposure correction button is on. With 1/3 stage step, setting is feasible within a range of ±2 stages.” In that case, it is possible for a user to set exposure correction by rotating the electronic dial 8.

In addition, even if the exposure correction button 15 is depressed when the mode dial 7 is already set to a photographing mode of the creative zone 70 and the recording image quality type is already set to the RAW type, help information is not displayed. In that case, although the help information is not displayed, it is possible for a user to set exposure correction by rotating the electronic dial 8.

Here, an algorithm of help information display control when the exposure correction button 15 is depressed is likewise the flow described in the flow chart in FIGS. 8A and 8B, and therefore description thereof will be omitted.

The above-described Examples of the built-in strobe button 11 and the exposure correction button 15 are designed to display help information with simple terms and easy wording in consideration of a possibility that a user is not proficient in camera operations at the time when the mode dial 7 is set to the full-automatic mode 71 or a photographing mode of the image zone 72 (automatically set to the JPEG type). In contrast, help information is displayed with concise and easily recognizable wording inclusive of technical term in accordance to necessity in consideration of a possibility that a user is proficient in camera operations to a certain extent at the time when the mode dial 7 is set to a photographing mode of the creative zone 70 and the recording image quality type is set to the JPEG type. In addition, when the mode dial 7 is already set to a photographing mode of creative zone 70 and the recording image quality type is already set to the RAW type, help information is determined unnecessary and is not displayed in consideration of a possibility that a user is rather proficient in camera operations.

Help information 2 using combination of camera settings and accessory appliances as identification information thereof

AF Frame Selection Button 13

When the AF frame selection button 13 is depressed with the mode dial 7 having been already set to the full-automatic mode 71 or a photographing mode of the image zone 72 (at that time, the photometry method is set to the evaluation photometry), there displayed is “With this photographing mode, this AF frame selection button does not operate. Please switch the photographing mode to the creative mode when the AF frame was selected optionally.”

In contrast, when the AF frame selection button 13 is depressed with the mode dial 7 having been already set to a photographing mode of the creative zone 70 and with photometry method having been already set to the evaluation photometry, there displayed is “Now the AF frame selection button is on. It is possible to select out of seven AF frames optionally.” In this case, it is possible for a user to select an AF frame by rotating the electronic dial 8.

In addition, when the mode dial 7 is set to a photographing mode of the creative zone 70 and the photometry method is set to the partial photometry or center-priority average photometry, even if the AF frame selection button 13 is depressed, help information will not be displayed. In that case, although the help information is not displayed, it is possible for a user to select an AF frame by rotating the electronic dial 8.

FIG. 10 shows a flow chart of help information display control at the time when the AF frame selection button 13 has been depressed. When the AF frame selection button 13 is depressed (Step S21), help information discriminating information β is initialized (Step S22). Next, it is determined whether or not the mode dial 7 is set to a photographing mode of creative zone 70 (Step S23).

In the case where the mode dial 7 is not set to a photographing mode of the creative zone 70, in Step S23, that is, in case of being set to the full-automatic mode 71 or a photographing mode of the image zone 72, the step directly moves to Step S25. In contrast, in the case where the mode dial 7 is set to a photographing mode of creative zone 70, “1” is added to help information discriminating information β (Step S24) and thereafter, the step moves to Step S25. In that case, since help information discriminating information β is initialized in Step S22, β=β+1 will be derived.

In Step S25, it is determined whether or not the photometry method is set to the evaluation photometry. In the case where the photometry method is set to the evaluation photometry, the step moves directly to Step S27. In contrast, in the case where the photometry method is not set to the evaluation photometry, that is, is set to the partial photometry or the center-priority average photometry, “1” is added to help information discriminating information β (Step S26) and thereafter, the step moves to Step S27.

In Step S27, it is determined whether or not help information discriminating information β is equal to or less than 0. In the case where help information discriminating information β is equal to or less than 0, the step goes forward to Step S29 to display help display 1 (simple and easy expression). In contrast, in the case where help information discriminating information β is larger than 0, the step goes forward to Step S28 to determine whether or not help information discriminating information β is 1. In the case where help information discriminating information β is 1, the step goes forward to Step S30 to display help information display 2 (concise with technical term). In contrast, in the case where help information discriminating information β is not 1, that is, is large than 1, the step goes forward to Step S31 to designate help information display 3 (no display).

The above-described example of the AF frame selection button 13 is designed to display help information with simple terms and easy wording in consideration of a possibility that a user is not proficient in camera operations at the time when the mode dial 7 is set to the full-automatic mode 71 or a photographing mode of the image zone 72 (automatically set to the evaluation photometry). In contrast, help information is displayed with concise and easily recognizable wording inclusive of technical term in accordance to necessity in consideration of a possibility that a user is proficient in camera operations to a certain extent at the time when the mode dial 7 is set to a photographing mode of the creative zone 70 and the photometry method is set to the evaluation photometry. In addition, when the mode dial 7 is already set to a photographing mode of the creative zone 70 and the photometry method is already set to the partial photometry or the center-priority average photometry, help information is determined unnecessary and is not displayed in consideration of a possibility that a user is rather proficient in camera operations.

Here, in order to select help information, identification information is not limited to combination of a photographing mode and the recording image quality or the photometry method but may be based on a combination otherwise. In addition, combination is not limited to two patterns but combination of more patterns may be adopted.

Second Embodiment

FIG. 11 is a rear view showing a digital single lens reflex camera of a second embodiment. A digital single lens reflex camera 101 of the present embodiment has a great number of functions as having been described in the first embodiment. Here, in FIG. 11, numbering of components having been described in FIGS. 1 and 2 is omitted.

Thus, due to a great number of functions, setting various functions during photographing may result in a setting state entirely different from the initial setting state. In that case, when an operation greatly different from the present setting is desired, required setting had better be implemented from the initial setting state so that convenient and swift operation is may be attained.

Therefore, the digital single lens reflex camera 101 of the present embodiment is provided with a setting initialization button 102 on the rear side thereof. It is configured to be feasible to cancel the present setting in its entirety to put it back to the initial setting state by depressing the setting initialization button 102.

In an explanation with a specific example, the camera 101 is set to the full-automatic mode 71 or a photographing mode of the image zone 72 with mode dial 7 and function setting is assumed to be as follows:

-   “Recording image quality type: JPEG” (automatically set by the     camera) -   “ISO sensitivity: 400” -   “White balance: auto white balance” (automatically set by the     camera) -   “Development parameter: reference parameter” (automatically set by     the camera) -   “AF mode: AI focus AF” (automatically set by the camera) -   “AF frame selection mode: automatic selection” (automatically set by     the camera) -   “Photometry method: evaluation photometry”: (automatically set by     the camera) -   “Exposure correction setting: no setting”: (automatically set by the     camera) -   “Self-timer mode: yes” -   “Custom function: no setting” (automatically set by the camera).

In that case, depressing the setting initialization button 102, the first initial setting state is reinstated, including:

-   “Recording image quality type: JPEG” (automatically set by the     camera) -   “ISO sensitivity: auto ISO” (changed) -   “White balance: auto white balance” (being left automatically set by     the camera) -   “Development parameter: reference parameter” (being left     automatically set by the camera) -   “AF mode: AI focus AF” (being left automatically set by the camera) -   “AF frame selection mode: automatic selection” (being left     automatically set by the camera) -   “Photometry method: evaluation photometry” (being left automatically     set by the camera) -   “Exposure correction setting: no setting” (being left automatically     set by the camera) -   “Self-timer mode: no” (changed) -   “Custom function: no setting” (being left automatically set by the     camera).

In contrast, the mode dial 7 is designated to set a photographing mode of creative zone 70, functional setting is assumed as follows:

-   “Recording image quality type: RAW” -   “ISO sensitivity: 400” -   “White balance: auto white balance” -   “Development parameter: manual set” -   “AF mode: one shot AF” -   “AF frame selection mode: optional selection” -   “Photometry method: partial photometry”: -   “Exposure correction setting: +1.0 stage” -   “Self-timer mode: yes” -   “Custom function: setting present”.

In that case, depressing the setting initialization button 102, the second initial setting state is reinstated, including:

-   “Recording image quality type: JPEG” (changed) -   “ISO sensitivity: 400” (no change) -   “White balance: auto white balance” (no change) -   “Development parameter: reference parameter” (changed) -   “AF mode: one shot AF” (no change) -   “AF frame selection mode: optional selection” (no change) -   “Photometry method: evaluation photometry” (changed) -   “Exposure correction setting: +0.0 stage” (changed) -   “Self-timer mode: no” (changed) -   “Custom function: no setting” (changed).

The above-described initialization example of the setting state is to return respective kinds of setting to such fist initialization setting that make it possible for a camera to carry out adequate photographing automatically, in consideration of a possibility that a user is not proficient in camera operations at the time when the mode dial 7 is set to the full-automatic mode 71 or a photographing mode of the image zone 72. In contrast, such second initialization setting is reinstated that does not rely on a camera for various kinds of setting but reflect intention of a user to a certain extent, in consideration of a possibility that a user is skilled in camera operations to a certain extent at the time when the mode dial 7 is set to a photographing mode of the creative zone 70.

Also in the present embodiment, besides the photographing mode set by the mode dial 7 being taken as identification information, the setting of a recording image quality type, ISO sensitivity, a white balance, a development parameter, an AF mode, an AF frame selection mode, a photometry method, an exposure correction setting and a custom function may be occasionally taken as identification information, accessory appliances mounted in the camera may be taken as identification information or they may be combined.

Here, it goes without saying that an object of the present invention is attained also by supplying a system or an apparatus with storage media having stored program codes of software realizing functions of the above described embodiment and by a computer (or a CPU and an MPU) of the system or the apparatus reading and executing program codes stored in the storage media.

In that case, the program codes themselves read out from the storage media will realize functions of the above described embodiment and the program codes themselves as well as the storage media having stored the program codes thereof will configure the present invention.

Those selected from the group consisting of a flexible disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM and the like, for example, can be used as storage media for supplying program codes.

In addition, it goes without saying that not only functions of the above described embodiment are realized by a computer, which reads and carries out the program codes, but also such a case is also included that an OS (basic system or operating system) and the like in operation on the computer carries out a part or all of the actual processing based on instructions of the program codes thereof and functions of the above described embodiment are realized with the processing thereof.

Moreover, it goes without saying that there also included is a case where program codes read out from the storage media are written into memory installed in a functional extension board inserted into a computer and a functional extension unit connected to a computer; thereafter a CPU and the like installed in the functional extension board and the functional extension unit carries out a part or all of the actual processing based on instructions of the program codes thereof; and functions of the above described embodiment are realized by the processing thereof.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

This application claims the benefit of Japanese Patent Application No. 2005-334817, filed Nov. 18, 2005, which is hereby incorporated by reference herein in its entirety. 

1. An image pickup apparatus having a guidance display unit, comprising: a) a mode setting unit configured to set a photographing mode of said image pickup apparatus; and b) a guidance display changing unit configured to change a detail level of displayed guidance in accordance with a photographing mode set by said mode setting unit, wherein contents of the changed detail level of guidance express same meaning.
 2. The image pickup apparatus according to claim 1, wherein said mode setting unit sets a photographing mode for a sensitivity setting of said image pickup apparatus and said guidance display changing unit changes detail level of displayed guidance in accordance with the set photographing mode for a set sensitivity setting.
 3. The image pickup apparatus according to claim 1, wherein said mode setting unit sets a photographing mode for image processing of said image pickup apparatus and said guidance display changing unit changes detail level of displayed guidance in accordance with the set photographing mode for image processing.
 4. The image pickup apparatus according to claim 1, wherein said mode setting unit sets a photographing mode for autofocus of said image pickup apparatus and said guidance display changing unit changes detail level of displayed guidance in accordance with the set photographing mode for autofocus.
 5. The image pickup apparatus according to claim 1, wherein said mode setting unit sets a photographing mode for photometry of said image pickup apparatus and said guidance display changing unit changes detail level of displayed guidance in accordance with the set photographing mode for photometry.
 6. The image pickup apparatus according to claim 1, wherein said mode setting unit sets a photographing mode for exposure correction of said image pickup apparatus and said guidance display changing unit changes detail level of displayed guidance in accordance with the set photographing mode for exposure correction.
 7. The image pickup apparatus according to claim 1, wherein said mode setting unit sets a custom function of said image pickup apparatus and said guidance display changing unit changes detail level of displayed guidance in accordance with a photographing mode based on the set custom function.
 8. An image pickup apparatus having guidance display unit, comprising: a) an identification unit configured to identify external appliances connected to said image pickup apparatus; and b) a guidance display changing unit configured to change a detail level of displayed guidance in accordance with external appliances identified with said identifying unit, wherein contents of the changed detail level of guidance express same meaning.
 9. A controlling method of an image pickup apparatus having guidance display unit, comprising: a) a mode setting step of setting a photographing mode of said image pickup apparatus; and b) a guidance display changing step of changing a detail level of displayed guidance in accordance with a photographing mode set in said mode setting step, wherein contents of the changed detail level of guidance express same meaning.
 10. A controlling method of an image pickup apparatus having a guidance display unit, comprising: a) an identification step of identifying external appliances connected to said image pickup apparatus; and b) a guidance display changing means step of changing a detail level of displayed guidance in accordance with external appliances identified in said identifying step, wherein contents of the changed detail level of guidance express same meaning.
 11. A computer program causing a computer to execute control of an image pickup apparatus having a guidance display unit, comprising: a) mode setting processing of setting a photographing mode of said image pickup apparatus; and b) guidance display changing processing of changing a detail level of displayed guidance in accordance with a photographing mode set in said mode setting processing, wherein contents of the changed detail level of guidance express same meaning.
 12. A computer program causing a computer to execute control of an image pickup apparatus having a guidance display unit of implementing guidance display in accordance with operations of a predetermined operation member, comprising: a) identification processing of identifying external appliances connected to said image pickup apparatus; and b) guidance display changing process unit processing of changing a detail level of displayed guidance in accordance with external appliances identified in said identifying processing, wherein contents of the changed detail level of guidance express same meaning. 